/* =================================================================
   SAT Verbal Pro — Authentic Bluebook Reading & Writing UI
   Purple accent theme, split-pane passage/question layout
================================================================= */
@import url('https://fonts.googleapis.com/css2?family=Source+Serif+4:ital,wght@0,300;0,400;0,600;1,300;1,400&family=DM+Sans:wght@300;400;500;600;700&display=swap');

/* ── Design tokens ──────────────────────────────────────────── */
:root {
  --svp-purple:       #7c3aed;
  --svp-purple-dark:  #5b21b6;
  --svp-purple-mid:   #8b5cf6;
  --svp-purple-light: #ede9fe;
  --svp-purple-xlight:#f5f3ff;
  --svp-teal:         #0891b2;
  --svp-bg:           #f8fafc;
  --svp-surface:      #ffffff;
  --svp-border:       #e2e8f0;
  --svp-border-soft:  #f1f5f9;
  --svp-text:         #0f172a;
  --svp-text-mid:     #1e293b;
  --svp-text-soft:    #475569;
  --svp-text-muted:   #94a3b8;
  --svp-green:        #12b76a;
  --svp-green-bg:     #ecfdf3;
  --svp-red:          #f04438;
  --svp-red-bg:       #fff1f3;
  --svp-amber:        #f59e0b;
  --svp-highlight:    #fef08a;   /* passage highlight colour */
  --svp-highlight-active: #fde047;
  --font-serif:       'Source Serif 4', Georgia, serif;
  --font-sans:        'DM Sans', system-ui, sans-serif;
  --topbar-h:         56px;
  --bottombar-h:      60px;
  --left-pane-w:      52%;      /* passage gets more room */
  --transition:       all .18s ease;
}

/* ── Launcher ───────────────────────────────────────────────── */
.svp-launcher { display: inline-block; }
.svp-launch-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 28px;
  background: var(--svp-purple);
  color: #fff;
  border: none;
  border-radius: 10px;
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 4px 18px rgba(124,58,237,.35);
  transition: var(--transition);
}
.svp-launch-btn svg { width: 18px; height: 18px; }
.svp-launch-btn:hover { background: var(--svp-purple-dark); transform: translateY(-2px); box-shadow: 0 7px 28px rgba(124,58,237,.45); }

/* ── Full-screen overlay ────────────────────────────────────── */
.svp-overlay {
  position: fixed;
  inset: 0;
  z-index: 99999;
  display: flex;
  flex-direction: column;
  background: var(--svp-bg);
  font-family: var(--font-sans);
  overflow: hidden;
}
.svp-hidden { display: none !important; }

/* ── Top bar ────────────────────────────────────────────────── */
.svp-topbar {
  height: var(--topbar-h);
  background: var(--svp-purple);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  flex-shrink: 0;
  box-shadow: 0 2px 8px rgba(0,0,0,.18);
  color: #fff;
  gap: 12px;
}
.svp-topbar-left  { display: flex; align-items: center; gap: 12px; }
.svp-topbar-center{ flex: 1; display: flex; justify-content: center; }
.svp-topbar-right { display: flex; align-items: center; gap: 8px; }

.svp-logo-mark {
  width: 32px; height: 32px;
  background: rgba(255,255,255,.18);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.svp-logo-mark svg { width: 20px; height: 20px; }

.svp-section-info { display: flex; flex-direction: column; }
.svp-section-label { font-size: 12px; font-weight: 700; letter-spacing: .05em; opacity: .85; text-transform: uppercase; }
.svp-module-badge {
  display: inline-block;
  background: rgba(255,255,255,.22);
  border: 1px solid rgba(255,255,255,.3);
  border-radius: 4px;
  padding: 1px 8px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .04em;
  margin-top: 2px;
}

/* Timer */
.svp-timer {
  display: flex;
  align-items: center;
  gap: 7px;
  background: rgba(0,0,0,.25);
  border: 1px solid rgba(255,255,255,.2);
  border-radius: 8px;
  padding: 6px 13px;
}
.svp-timer svg { width: 16px; height: 16px; opacity: .85; }
.svp-time { font-size: 16px; font-weight: 700; letter-spacing: .04em; font-variant-numeric: tabular-nums; }
.svp-timer-toggle {
  background: none; border: none; color: rgba(255,255,255,.7);
  padding: 2px; cursor: pointer; display: flex; align-items: center;
}
.svp-timer-toggle svg { width: 14px; height: 14px; }
.svp-timer-toggle:hover { color: #fff; }
.svp-timer.warn .svp-time { color: #fcd34d; }
.svp-timer.danger .svp-time { color: #fca5a5; animation: svp-blink 1s infinite; }
@keyframes svp-blink { 0%,100%{opacity:1} 50%{opacity:.4} }
.svp-timer.hidden .svp-time::after { content:'--:--'; }
.svp-timer.hidden .svp-time { color: transparent; position: relative; }
.svp-timer.hidden .svp-time::after { position: absolute; left: 0; color: rgba(255,255,255,.5); }

/* Tool buttons */
.svp-tool-btn {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 6px 12px;
  background: rgba(255,255,255,.15);
  border: 1px solid rgba(255,255,255,.25);
  border-radius: 7px;
  color: #fff;
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}
.svp-tool-btn svg { width: 14px; height: 14px; }
.svp-tool-btn:hover { background: rgba(255,255,255,.28); }
.svp-tool-btn.active { background: rgba(255,255,255,.92); color: var(--svp-purple); border-color: transparent; }
.svp-exit-btn {
  background: none; border: none; color: rgba(255,255,255,.8);
  padding: 6px; cursor: pointer; border-radius: 6px;
  display: flex; align-items: center;
  transition: var(--transition);
}
.svp-exit-btn svg { width: 18px; height: 18px; }
.svp-exit-btn:hover { background: rgba(255,255,255,.15); color: #fff; }

/* ── Main area ──────────────────────────────────────────────── */
.svp-main {
  flex: 1;
  overflow: hidden;
  position: relative;
}

/* ── Loading ────────────────────────────────────────────────── */
.svp-loading-screen {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: var(--svp-bg);
  gap: 20px;
  z-index: 10;
}
.svp-loading-spinner {
  width: 44px; height: 44px;
  border: 3px solid var(--svp-border);
  border-top-color: var(--svp-purple);
  border-radius: 50%;
  animation: svp-spin .8s linear infinite;
}
@keyframes svp-spin { to { transform: rotate(360deg); } }
.svp-loading-text { font-size: 15px; color: var(--svp-text-soft); font-weight: 500; }

/* ── Start screen ───────────────────────────────────────────── */
.svp-start-screen {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow-y: auto;
  padding: 24px 16px;
}
.svp-start-card {
  background: var(--svp-surface);
  border: 1px solid var(--svp-border);
  border-radius: 16px;
  padding: 40px 44px;
  max-width: 780px;
  width: 100%;
  box-shadow: 0 8px 40px rgba(0,0,0,.08);
  text-align: center;
}
.svp-start-logo { margin-bottom: 16px; }
.svp-start-logo svg { width: 64px; height: 64px; }
.svp-hard-badge {
  display: inline-block;
  background: linear-gradient(135deg, #dc2626, #b91c1c);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .07em;
  text-transform: uppercase;
  padding: 5px 16px;
  border-radius: 20px;
  margin-bottom: 14px;
  box-shadow: 0 3px 12px rgba(220,38,38,.35);
}
.svp-start-title {
  font-size: 26px;
  font-weight: 800;
  color: var(--svp-text);
  margin-bottom: 8px;
  letter-spacing: -.02em;
}
.svp-start-sub { font-size: 14px; color: var(--svp-text-soft); margin-bottom: 28px; line-height: 1.6; }

/* Segmented controls */
.svp-start-controls { margin-bottom: 22px; }
.svp-control-group { margin-bottom: 16px; }
.svp-ctrl-label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .07em;
  color: var(--svp-text-muted);
  margin-bottom: 8px;
}
.svp-segmented {
  display: inline-flex;
  background: var(--svp-border-soft);
  border-radius: 10px;
  padding: 4px;
  gap: 3px;
  flex-wrap: wrap;
  justify-content: center;
}
.svp-seg-btn {
  padding: 8px 16px;
  border: none;
  border-radius: 7px;
  background: transparent;
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 500;
  color: var(--svp-text-soft);
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}
.svp-seg-btn:hover { background: rgba(124,58,237,.1); color: var(--svp-purple); }
.svp-seg-btn.active { background: var(--svp-purple); color: #fff; font-weight: 600; box-shadow: 0 2px 8px rgba(124,58,237,.3); }

/* Topic / question type pills */
.svp-start-topic-row { margin-bottom: 22px; }
.svp-topic-pills { display: flex; flex-wrap: wrap; gap: 7px; justify-content: center; margin-top: 8px; }
.svp-pill {
  padding: 6px 14px;
  border: 1.5px solid var(--svp-border);
  border-radius: 20px;
  background: var(--svp-surface);
  font-family: var(--font-sans);
  font-size: 12.5px;
  font-weight: 500;
  color: var(--svp-text-soft);
  cursor: pointer;
  transition: var(--transition);
}
.svp-pill:hover { border-color: var(--svp-purple); color: var(--svp-purple); background: var(--svp-purple-xlight); }
.svp-pill.active { background: var(--svp-purple); border-color: var(--svp-purple); color: #fff; font-weight: 600; }

/* Feature chips */
.svp-start-features {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin-bottom: 28px;
}
.svp-feature-chip {
  padding: 5px 13px;
  background: var(--svp-purple-xlight);
  border: 1px solid #ddd6fe;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  color: var(--svp-purple-dark);
}

/* Start button */
.svp-start-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 36px;
  background: var(--svp-purple);
  color: #fff;
  border: none;
  border-radius: 10px;
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 4px 18px rgba(124,58,237,.35);
  transition: var(--transition);
}
.svp-start-btn svg { width: 18px; height: 18px; }
.svp-start-btn:hover { background: var(--svp-purple-dark); transform: translateY(-1px); box-shadow: 0 6px 22px rgba(124,58,237,.45); }

/* ── Question area — Bluebook split ─────────────────────────── */
.svp-question-area {
  display: flex;
  height: 100%;
  overflow: hidden;
  position: relative;
}

/* ── Pane shared ─────────────────────────────────────────────── */
.svp-left-pane,
.svp-right-pane {
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
}
.svp-pane-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 20px;
  border-bottom: 1px solid var(--svp-border);
  background: var(--svp-surface);
  flex-shrink: 0;
}
.svp-pane-label {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .07em;
  color: var(--svp-text-muted);
}

/* ── LEFT PANE: Passage ─────────────────────────────────────── */
.svp-left-pane {
  width: var(--left-pane-w);
  border-right: 2px solid var(--svp-border);
  background: var(--svp-surface);
  flex-shrink: 0;
}
.svp-passage-meta { flex: 1; }
.svp-passage-genre {
  font-size: 11.5px;
  font-weight: 600;
  color: var(--svp-purple);
  background: var(--svp-purple-light);
  padding: 2px 9px;
  border-radius: 10px;
}

/* Highlight toggle button */
.svp-highlight-btn {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 5px 12px;
  border: 1.5px solid var(--svp-border);
  border-radius: 7px;
  background: var(--svp-surface);
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 600;
  color: var(--svp-text-soft);
  cursor: pointer;
  transition: var(--transition);
  flex-shrink: 0;
}
.svp-highlight-btn svg { width: 13px; height: 13px; }
.svp-highlight-btn:hover { border-color: var(--svp-amber); color: var(--svp-amber); }
.svp-highlight-btn.active { background: var(--svp-amber); border-color: var(--svp-amber); color: #fff; }
.svp-highlight-btn.active svg { stroke: #fff; }

.svp-passage-wrap {
  flex: 1;
  overflow-y: auto;
  padding: 24px 28px 32px;
  scroll-behavior: smooth;
}

/* Passage label (Text 1 / Text 2 for cross-text) */
.svp-passage-label-head {
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--svp-text-muted);
  margin-bottom: 12px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--svp-border-soft);
}

.svp-passage-text {
  font-family: var(--font-serif);
  font-size: 16px;
  line-height: 1.95;
  color: var(--svp-text-mid);
  letter-spacing: .005em;
  user-select: text;
}

/* Passage highlights */
.svp-passage-text mark,
.svp-hl {
  background: var(--svp-highlight);
  border-radius: 2px;
  padding: 1px 0;
  cursor: pointer;
}
.svp-hl:hover { background: var(--svp-highlight-active); }

/* Target vocabulary word (marked with **) */
.svp-vocab-word {
  font-weight: 700;
  color: var(--svp-purple-dark);
  text-decoration: underline;
  text-decoration-style: dotted;
  cursor: help;
}

/* Grammar blank */
.svp-blank {
  display: inline-block;
  min-width: 80px;
  border-bottom: 2px solid var(--svp-purple);
  color: var(--svp-purple);
  font-weight: 700;
  font-style: italic;
  padding: 0 4px;
}

/* Passage 2 divider */
.svp-passage-divider {
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--svp-text-muted);
  border-top: 1px solid var(--svp-border);
  padding: 16px 0 12px;
  margin-top: 20px;
}

/* Notes bullet list from AI */
.svp-notes-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.svp-notes-list li {
  display: flex;
  gap: 8px;
  font-family: var(--font-serif);
  font-size: 15px;
  line-height: 1.7;
  color: var(--svp-text-mid);
}
.svp-notes-list li::before {
  content: '•';
  color: var(--svp-purple);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 2px;
}

/* ── RIGHT PANE: Question ───────────────────────────────────── */
.svp-right-pane {
  flex: 1;
  background: var(--svp-bg);
  min-width: 0;
}

/* Question header */
.svp-q-num {
  font-size: 13px;
  font-weight: 700;
  color: var(--svp-text-soft);
}
.svp-q-badges { display: flex; gap: 6px; align-items: center; flex: 1; flex-wrap: wrap; }
.svp-badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .02em;
  white-space: nowrap;
}
.svp-badge-skill { background: var(--svp-purple-light); color: var(--svp-purple-dark); border: 1px solid #ddd6fe; }
.svp-badge-qtype { background: #f0fdf4; color: #166534; border: 1px solid #bbf7d0; }
.svp-badge-hard  { background: #fff1f3; color: #be123c; border: 1px solid #fecdd6; font-weight: 800; }

/* Mark for review */
.svp-mark-btn {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 5px 11px;
  border: 1.5px solid var(--svp-border);
  border-radius: 7px;
  background: transparent;
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 600;
  color: var(--svp-text-soft);
  cursor: pointer;
  transition: var(--transition);
  flex-shrink: 0;
}
.svp-mark-btn svg { width: 13px; height: 13px; }
.svp-mark-btn:hover { border-color: var(--svp-amber); color: var(--svp-amber); }
.svp-mark-btn.marked { border-color: var(--svp-amber); color: var(--svp-amber); background: #fffbeb; }
.svp-mark-btn.marked svg { fill: var(--svp-amber); stroke: var(--svp-amber); }

/* Question body scroll area */
.svp-q-body {
  flex: 1;
  overflow-y: auto;
  padding: 20px 24px 32px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* Key evidence box */
.svp-evidence-box {
  background: #fffbeb;
  border: 1.5px solid #fde68a;
  border-radius: 8px;
  padding: 12px 16px;
  border-left: 4px solid var(--svp-amber);
}
.svp-evidence-label {
  font-size: 10.5px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .07em;
  color: #92400e;
  margin-bottom: 6px;
}
.svp-evidence-text {
  font-family: var(--font-serif);
  font-size: 14px;
  line-height: 1.7;
  color: #78350f;
  font-style: italic;
}

/* Question stem */
.svp-question-stem {
  font-family: var(--font-sans);
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.7;
  color: var(--svp-text);
}

/* Answer choices */
.svp-choices {
  display: flex;
  flex-direction: column;
  gap: 9px;
}
.svp-choice {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 13px 16px;
  border: 2px solid var(--svp-border);
  border-radius: 10px;
  background: var(--svp-surface);
  text-align: left;
  cursor: pointer;
  font-family: var(--font-sans);
  font-size: 14.5px;
  line-height: 1.55;
  color: var(--svp-text-mid);
  transition: var(--transition);
  width: 100%;
}
.svp-choice:hover:not(:disabled) {
  border-color: var(--svp-purple);
  background: var(--svp-purple-xlight);
  box-shadow: 0 2px 10px rgba(124,58,237,.12);
}
.svp-choice-letter {
  width: 30px; height: 30px;
  border: 2px solid var(--svp-border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  flex-shrink: 0;
  transition: var(--transition);
  background: var(--svp-bg);
  color: var(--svp-text-soft);
}
.svp-choice-text { flex: 1; padding-top: 5px; }

/* Selected / hover state */
.svp-choice.selected { border-color: var(--svp-purple); background: var(--svp-purple-light); }
.svp-choice.selected .svp-choice-letter { background: var(--svp-purple); border-color: var(--svp-purple); color: #fff; }

/* Correct */
.svp-choice.correct { border-color: var(--svp-green); background: var(--svp-green-bg); }
.svp-choice.correct .svp-choice-letter { background: var(--svp-green); border-color: var(--svp-green); color: #fff; }

/* Incorrect */
.svp-choice.incorrect { border-color: var(--svp-red); background: var(--svp-red-bg); }
.svp-choice.incorrect .svp-choice-letter { background: var(--svp-red); border-color: var(--svp-red); color: #fff; }

/* Hint */
.svp-hint-row { display: flex; }
.svp-hint-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 12px;
  border: 1.5px solid var(--svp-border);
  border-radius: 7px;
  background: transparent;
  font-family: var(--font-sans);
  font-size: 12.5px;
  font-weight: 600;
  color: var(--svp-purple);
  cursor: pointer;
  transition: var(--transition);
}
.svp-hint-btn svg { width: 14px; height: 14px; stroke: var(--svp-purple); }
.svp-hint-btn:hover { background: var(--svp-purple-xlight); border-color: var(--svp-purple); }
.svp-hint-box {
  padding: 12px 16px;
  background: var(--svp-purple-xlight);
  border: 1px solid #ddd6fe;
  border-left: 4px solid var(--svp-purple-mid);
  border-radius: 8px;
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--svp-purple-dark);
  font-style: italic;
  animation: svp-fadein .2s ease;
}

/* Result box */
.svp-result {
  border-radius: 10px;
  padding: 16px 20px;
  animation: svp-fadein .2s ease;
}
@keyframes svp-fadein { from { opacity:0; transform:translateY(4px); } to { opacity:1; transform:translateY(0); } }
.svp-result.correct-result   { background: var(--svp-green-bg); border: 1.5px solid #a7f3c4; }
.svp-result.incorrect-result { background: var(--svp-red-bg);   border: 1.5px solid #fda4af; }
.svp-result-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
}
.svp-result-icon  { font-size: 20px; }
.svp-result-label { font-size: 15px; font-weight: 700; color: var(--svp-text); }
.svp-result-body  {
  font-family: var(--font-sans);
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--svp-text-soft);
  white-space: pre-wrap;
}

/* ── Notes panel (slide in from right) ──────────────────────── */
.svp-notes-panel {
  position: absolute;
  right: 0; top: 0; bottom: 0;
  width: 320px;
  background: var(--svp-surface);
  border-left: 1px solid var(--svp-border);
  box-shadow: -4px 0 24px rgba(0,0,0,.1);
  display: flex;
  flex-direction: column;
  z-index: 50;
  transform: translateX(0);
  transition: transform .25s ease;
}
.svp-notes-hidden { transform: translateX(110%); }
.svp-notes-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  border-bottom: 1px solid var(--svp-border);
  font-weight: 700;
  font-size: 13px;
  color: var(--svp-text);
}
.svp-notes-close {
  background: none; border: none; font-size: 16px;
  color: var(--svp-text-muted); cursor: pointer; padding: 2px 6px;
  border-radius: 4px; transition: var(--transition);
}
.svp-notes-close:hover { background: var(--svp-border-soft); color: var(--svp-text); }
.svp-notes-textarea {
  flex: 1;
  border: none;
  outline: none;
  padding: 16px 18px;
  font-family: var(--font-sans);
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--svp-text);
  background: var(--svp-surface);
  resize: none;
}
.svp-notes-textarea::placeholder { color: var(--svp-text-muted); }

/* ── Bottom bar ─────────────────────────────────────────────── */
.svp-bottombar {
  height: var(--bottombar-h);
  background: var(--svp-surface);
  border-top: 1px solid var(--svp-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  flex-shrink: 0;
  gap: 16px;
}
.svp-bottombar-left   { display: flex; align-items: center; gap: 14px; }
.svp-bottombar-center { flex: 1; max-width: 420px; margin: 0 auto; }
.svp-bottombar-right  { display: flex; align-items: center; }

.svp-score-display { display: flex; flex-direction: column; align-items: center; }
.svp-score-label { font-size: 10px; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; color: var(--svp-text-muted); }
.svp-score-val   { font-size: 16px; font-weight: 800; color: var(--svp-purple); }

.svp-streak-display {
  display: flex;
  align-items: center;
  gap: 4px;
  background: #fff7ed;
  border: 1px solid #fed7aa;
  border-radius: 20px;
  padding: 3px 10px;
  font-size: 13px;
  font-weight: 700;
  color: #c2410c;
}
.svp-streak-fire { font-size: 14px; }

.svp-progress-wrap { display: flex; flex-direction: column; gap: 5px; }
.svp-progress-bar  {
  height: 6px;
  background: var(--svp-border);
  border-radius: 10px;
  overflow: hidden;
}
.svp-progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--svp-purple), var(--svp-teal));
  border-radius: 10px;
  transition: width .4s ease;
}
.svp-progress-label { font-size: 11px; font-weight: 600; color: var(--svp-text-muted); text-align: center; }

/* Next button */
.svp-next-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 11px 24px;
  background: var(--svp-purple);
  color: #fff;
  border: none;
  border-radius: 9px;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 2px 10px rgba(124,58,237,.3);
}
.svp-next-btn svg { width: 16px; height: 16px; }
.svp-next-btn:disabled { opacity: .45; cursor: not-allowed; box-shadow: none; }
.svp-next-btn:hover:not(:disabled) { background: var(--svp-purple-dark); }
.svp-next-btn.ready {
  background: linear-gradient(90deg, #16a34a, #059669);
  box-shadow: 0 2px 10px rgba(22,163,74,.3);
}
.svp-next-btn.ready::before { content: '⚡ '; font-size: 12px; }

/* ── Scrollbars ─────────────────────────────────────────────── */
.svp-passage-wrap::-webkit-scrollbar,
.svp-q-body::-webkit-scrollbar { width: 6px; }
.svp-passage-wrap::-webkit-scrollbar-track,
.svp-q-body::-webkit-scrollbar-track { background: transparent; }
.svp-passage-wrap::-webkit-scrollbar-thumb,
.svp-q-body::-webkit-scrollbar-thumb { background: var(--svp-border); border-radius: 10px; }
.svp-passage-wrap::-webkit-scrollbar-thumb:hover,
.svp-q-body::-webkit-scrollbar-thumb:hover { background: var(--svp-text-muted); }

/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 900px) {
  :root { --left-pane-w: 48%; }
  .svp-start-card { padding: 28px 20px; }
  .svp-tool-btn span { display: none; }
}
@media (max-width: 680px) {
  .svp-question-area { flex-direction: column; }
  .svp-left-pane {
    width: 100%;
    height: 45%;
    border-right: none;
    border-bottom: 2px solid var(--svp-border);
    flex-shrink: 0;
  }
  .svp-right-pane { height: 55%; }
  .svp-start-card { padding: 24px 16px; }
  .svp-start-title { font-size: 21px; }
  .svp-segmented { width: 100%; }
}